the one about the Niagara falls reminded me of this one:
"Les cons, ça ose tout. C'est même à ça qu'on les reconnaît." (Michel Audiard)
roughly translated:
"Morrons dare everything. That's how you recognize them."
The link from this reply now posts to a steroids page. From the DOI in the link, I found the article here:
https://journals.sagepub.com/doi/abs/10.1111/j.0956-7976.2005.01576.x
(for anyone interested and still looking at these comments 13y later ;-) )
the one about the Niagara falls reminded me of this one: "Les cons, ça ose tout. C'est même à ça qu'on les reconnaît." (Michel Audiard) roughly translated: "Morrons dare everything. That's how you recognize them."